MG068: Megisia is a level 40 Seidr in Xenoblade Chronicles X. It shares the same name as its pilot. It is a Secondary Boss and Mission Exclusive Enemy, and is fought at Cauldros's Wildcat Fortress during the Normal Mission Slovity's Revenge.
"A Seidr piloted by MG068: Megisia, the youngest sister in the Megisia series of Definians. This Skell has been upgraded more than those piloted by her siblings."